Patents by Inventor Yasuyuki Teranishi

Yasuyuki Teranishi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10754473
    Abstract: According to one embodiment, a display device includes a display portion, a touch detection circuit and a scanning line drive circuit. A frame period, which includes a display period in which the scanning signal is supplied to the plurality of scanning lines for image display, and a touch detection period related to sensing using the plurality of electrodes, includes a first frame and a second frame. The number of scanning lines to which the scanning signal is supplied in each display period included in the first and second frames is adjusted such that a potential of the touch detection period included in the first frame matches a potential of the touch detection period included in the second frame.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: August 25, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasuyuki Teranishi, Gen Koide
  • Patent number: 10747377
    Abstract: A display device includes a substrate, first electrodes, second electrodes, and a driver. The first electrodes are disposed in a matrix (row-column configuration) in a display region of the substrate. The second electrodes are disposed in a peripheral region on the outside of the display region of the substrate. The driver supplies a drive signal to the first electrodes and the second electrodes. The first electrodes output detection signals corresponding to self-capacitance changes in the first electrodes. The second electrodes output detection signals corresponding to self-capacitance changes in the second electrodes.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasuyuki Teranishi, Gen Koide
  • Publication number: 20200257401
    Abstract: A liquid crystal display device is provided and includes a liquid crystal element array having pixel electrodes and switching elements arranged in a matrix form; scanning lines arranged in each row of the liquid crystal element array and supply a scanning signal to switching elements; signal lines arranged in each column of the liquid crystal element array and supply an image signal to the pixel electrodes through switching elements; touch electrodes overlapping pixel electrodes and arranged in the column of the liquid crystal element array; signal line drive circuit arranged along one side of the liquid crystal element array parallel to the row of the liquid crystal element array and forms the image signal; first circuit arranged along the other side of the liquid crystal element array parallel to the row of the liquid crystal element array and is connected to the touch electrodes; and second circuit arranged along the one side of the liquid crystal element array and is connected to the touch electrodes, whe
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Hiroshi MIZUHASHI, Yasuyuki TERANISHI, Toshiaki FUKUSHIMA, Daisuke ITO, Gen KOIDE, Tadayoshi KATSUTA
  • Publication number: 20200192517
    Abstract: A detection apparatus is provided including a touch detection surface serving as a detection region having two dimensions; and first electrode components including divided electrodes arranged in the touch detection surface, first connection lines connected to one of the divided electrodes on a one-to-one basis, and a detection unit configured to output a detection signal to the divided electrodes via the first connection lines, wherein the first connection lines has a first switch between a corresponding one of the divided electrodes and the detection unit, in each of the first electrode components, the first connection lines are connected to each other between the first switches and the detection unit, and in each of the first electrode components, the divided electrodes function as one first electrode when all the first switches are closed.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 18, 2020
    Inventors: Hayato KURASAWA, Yasuyuki TERANISHI
  • Patent number: 10635229
    Abstract: A liquid crystal display device includes a liquid crystal element array having liquid crystal display elements arranged in matrix, scanning lines arranged in each row of the liquid crystal element array and supplying a scanning signal to the liquid crystal display elements in a corresponding row, signal lines arranged in each column of the liquid crystal element array and supplying an image signal to the liquid crystal display elements in a corresponding column, drive electrodes arranged in the column of the liquid crystal element array and to which a drive signal to detect a touch is supplied, a signal line drive circuit arranged along one side of the liquid crystal element array parallel to the row of the liquid crystal element array and forming the image signal, and a first electrode drive circuit arranged along the other side of the liquid crystal element array and forming the drive signal.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: April 28, 2020
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Mizuhashi, Yasuyuki Teranishi, Toshiaki Fukushima, Daisuke Ito, Gen Koide, Tadayoshi Katsuta
  • Patent number: 10585540
    Abstract: A detection device includes a plurality of first electrodes and a plurality of second electrodes. The first electrodes are arrayed in a first direction and a second direction intersecting the first direction. The second electrodes are arrayed in the first direction and the second direction. The first electrodes and the second electrodes overlap in planar view. The size of the first electrodes in planar view may be larger than that of the second electrodes, for example.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 10, 2020
    Assignee: Japan Display Inc.
    Inventor: Yasuyuki Teranishi
  • Patent number: 10585523
    Abstract: According to an aspect, a detection apparatus includes a touch detection surface having two dimensions, a touch detection unit and a force detection unit. The touch detection unit includes: first electrodes extending along a first direction; and a first signal output unit configured to output a first signal indicating a position of the touch operation in a second direction. Each first electrode includes divided electrodes provided in the first direction. First detection regions each provided by bundling the divided electrodes arranged in the second direction are set. The force detection unit includes a base electrode configured such that distances between the base electrode and the respective divided electrodes change when the first electrodes bend according to the applied force applied. The force signal is a signal based on electrostatic capacitances obtained by individual detection.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 10, 2020
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Yasuyuki Teranishi
  • Patent number: 10579196
    Abstract: A display device includes a first substrate, a plurality of first electrodes, a second electrode, a third electrode, and a driver. The first electrodes are disposed in a display region of the first substrate. The second electrode faces the first electrodes in a direction perpendicular to the surface of the first substrate and forms capacitance between the second electrode and the first electrodes. The third electrode is provided in a peripheral region positioned on the outside of the display region and does not overlap the first electrodes in planar view. The driver supplies a drive signal to the third electrode and at least one of the first electrodes simultaneously.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 3, 2020
    Assignee: Japan Display Inc.
    Inventors: Michita Kudo, Yasuyuki Teranishi, Takafumi Suzuki
  • Publication number: 20200064957
    Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 27, 2020
    Inventors: Hayato Kurasawa, Yasuyuki Teranishi, Hiroshi Mizuhashi, Koji Ishizaki, Daisuke Ito
  • Patent number: 10564754
    Abstract: A display device includes a display panel, a housing, a second electrode, and a driver. The display panel includes a substrate and a plurality of first electrodes arrayed in a display region of the substrate. The housing has at least a pair of walls facing each other in planar view and is provided with the display panel between the pair of walls. The second electrode is provided to the housing and positioned on the outer side than the display region in planar view and forms capacitance between the second electrode and the first electrodes. The driver supplies a drive signal to the second electrode.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: February 18, 2020
    Assignee: Japan Display Inc.
    Inventors: Michita Kudo, Yasuyuki Teranishi, Takafumi Suzuki
  • Patent number: 10558292
    Abstract: A display device includes a substrate, pixel electrodes, first electrodes, gate lines, signal lines, switching elements, a conductor, and a driver. The pixel electrodes are arrayed in a display region of the substrate. The first electrodes are separated from the pixel electrodes in a direction perpendicular to the substrate. The gate lines are disposed between the substrate and the first electrodes in the direction perpendicular to the substrate and extend in a plane parallel to the surface of the substrate. The signal lines intersect the gate lines in planar view. The switching elements are provided at the intersections of the gate lines and the signal lines. The conductor is provided opposite to the gate lines and the signal lines across the substrate in the direction perpendicular to the substrate.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: February 11, 2020
    Assignee: Japan Display Inc.
    Inventors: Takafumi Suzuki, Yasuyuki Teranishi
  • Patent number: 10558307
    Abstract: A display device includes a substrate, a plurality of detection electrodes, a drive circuit, a detector, and a first switching circuit. The detection electrodes are provided in a display area of the substrate. The drive circuit supplies a drive signal to the detection electrodes. The detector receives, from the detection electrodes, a detection signal corresponding to a capacitance change in the detection electrodes occurring when the drive signal is supplied. The first switching circuit is coupled to the detector via wiring and provided between the detection electrodes and the detector. The first switching circuit changes the number of detection electrodes electrically coupled to one of the wiring based on the detection signal.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: February 11, 2020
    Assignee: Japan Display Inc.
    Inventors: Naoki Takada, Hayato Kurasawa, Koji Noguchi, Takayuki Nakanishi, Yasuyuki Teranishi
  • Patent number: 10540038
    Abstract: A display device includes a substrate, a plurality of first electrodes, a plurality of second electrodes, at least one third electrode, and a drive circuit. The first electrodes are arrayed in an active area of the substrate. The second electrodes face the first electrodes and form capacitance between the first electrodes and the second electrodes. The third electrode is provided in a peripheral region positioned on the outside of the active area. The drive circuit supplies a drive signal having a phase determined based on a predetermined code to the first electrodes and the third electrode.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: January 21, 2020
    Assignee: Japan Display Inc.
    Inventors: Takafumi Suzuki, Yasuyuki Teranishi, Michita Kudo
  • Patent number: 10534465
    Abstract: A performance of a display device having an input device is improved. A display device includes: an electro-optical layer; a first driving electrode and a second driving electrode which drives the electro-optical layer; a driver chip which outputs a video signal; a switch circuit which is arranged outside the driver chip, which selects a potential to be supplied to the second driving electrode, and which includes a first switch element and a second switch element; a shift register circuit connected to the switch circuit; and a detection circuit which detects that an object is close or in contact. Each of the first switch element and the second switch element is selectively turned ON or OFF by the shift register circuit. The detection circuit is electrically connected to the first switch element and the second switch element.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: January 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Tadayoshi Katsuta, Koji Noguchi, Daisuke Ito, Yasuyuki Teranishi
  • Publication number: 20200012381
    Abstract: A noise immunity of a detected capacitance is prevented or inhibited from lowering on a driving electrode different in width from the other driving electrodes, provided in an input device. A touch panel serving as an input device has a plurality of driving electrodes extending in an X-axis direction and arranged in a Y-axis direction intersecting with the X-axis direction, and a driving electrode arranged outside one side of an arrangement of the driving electrodes and extending in the X-axis direction. Further, the touch panel TP1 has a plurality of detecting electrodes extending in the Y-axis direction and arranged in the X-axis direction. The width of the driving electrode is smaller than the widths of the driving electrodes and the detecting electrode includes an expanding portion for expanding the area of the detecting electrode on the side opposite to the plurality of driving electrodes via the driving electrode.
    Type: Application
    Filed: September 17, 2019
    Publication date: January 9, 2020
    Inventors: Yasuyuki TERANISHI, Takafumi SUZUKI, Kohei AZUMI
  • Publication number: 20190391699
    Abstract: A detection device includes a substrate, first electrodes, second electrodes, and a conductor. The substrate has a first surface and a second surface opposite to the first surface. The first electrodes are provided in a display area of the substrate and detect the position of an object being in contact with or in proximity to the first surface side of the substrate or pressure of the object being in contact with the first surface side. The second electrodes are provided along at least one side of the outer periphery of the display area. The conductor is provided on the second surface side of the substrate apart from the substrate and generates an electrostatic capacitor between the conductor and the second electrodes.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Inventors: Koji NOGUCHI, Tadayoshi KATSUTA, Yasuyuki TERANISHI
  • Patent number: 10514795
    Abstract: A performance of a display device having an input device is improved. A display device includes: an electro-optical layer; a first driving electrode and a second driving electrode which drives the electro-optical layer; a driver chip which outputs a video signal; a switch circuit which is arranged outside the driver chip, which selects a potential to be supplied to the second driving electrode, and which includes a first switch element and a second switch element; a shift register circuit connected to the switch circuit; and a detection circuit which detects that an object is close or in contact. Each of the first switch element and the second switch element is selectively turned ON or OFF by the shift register circuit. The detection circuit is electrically connected to the first switch element and the second switch element.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 24, 2019
    Assignee: Japan Display Inc.
    Inventors: Tadayoshi Katsuta, Koji Noguchi, Daisuke Ito, Yasuyuki Teranishi
  • Publication number: 20190384478
    Abstract: According to one embodiment, a display device includes a display portion, a touch detection circuit and a scanning line drive circuit. A frame period, which includes a display period in which the scanning signal is supplied to the plurality of scanning lines for image display, and a touch detection period related to sensing using the plurality of electrodes, includes a first frame and a second frame. The number of scanning lines to which the scanning signal is supplied in each display period included in the first and second frames is adjusted such that a potential of the touch detection period included in the first frame matches a potential of the touch detection period included in the second frame.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 19, 2019
    Inventors: Yasuyuki TERANISHI, Gen KOIDE
  • Patent number: 10496207
    Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: December 3, 2019
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Yasuyuki Teranishi, Hiroshi Mizuhashi, Koji Ishizaki, Daisuke Ito
  • Patent number: 10496228
    Abstract: To improve detection reliability of an input device provided with a display device. A display device includes an array substrate having an upper surface and a lower surface on an opposite side of the upper surface, a display functional layer provided on the upper surface side of the array substrate, a plurality of first wirings provide on the upper surface side of the array substrate and applied with a signal for driving the display functional layer, a conductive pattern provided on the lower surface of the array substrate so as to be separated from the array substrate, and a detection circuit unit detecting a change in a capacitance value between the plurality of first wirings and the conductive pattern.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: December 3, 2019
    Assignee: Japan Display Inc.
    Inventors: Koji Noguchi, Kazuyuki Kobayashi, Yasuyuki Teranishi, Gen Koide